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NUMERICAL SIMULATION OF CONTROLLING IN TITANIUM ALLOY SHEETS WELDING RESIDUAL STRESS BY TRAILING PEENING X.S.Liu1,W.L.Xu1,D.Y.Yu1,Z.B.Dong1,H.Y.Fang1 (1.State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China) Abstract:It is a promising and new technology to apply welding with trailing peening to control welding stress and distortion......
Characterization of Nanocrystallizatin Surface Layer of 0.4C-1Cr Low Alloy Steel Prepared by Ultrasonic Particulate Peening ZHANG Jun-bao1,LIU Yu-liang2,XIONG Tian-ying2,SONG Hong-wei1,WU Jie2,ZHAO... was fabricated in a quenched and tempered 0.4C-1Cr low alloy steel by ultrasonic particulate peening technique. The microstructure of the nanocrystalline surface layer was characterized by means of TEM......
Residual Stress Improved by Water Jet Peening for A Quenched Gear Vincent JI1,R.Oba2,T.Uchiyama2,H.Tsuda3,Dong-Ying Ju4 (1.LM3, ENSAM University, 151, Boulevard de l'Hopital 75013, Paris, France..., Saitama Institute of Technology, Fusaiji 1690, Okabe, 369-0293, Saitama, Japan) 摘要:In this paper, a running cost is cheap from the thing used for harmless peening treatment to the environment,health......
Analytical Modelling of Shot-peening Residual Stress on Welding Carbon Steel Surface Layer王军强1,2,韩建民1,LI Weijing1,YANG Zhiyong1,LI Zhiqiang1,ZHAO Yingxin11. School of Mechanical,Electronic... to shot peening on the welding carbon steel surface layer. The initial welding residual stresses before shot peening were taken into consideration in this analytical model. The Hertzian elastic contact......
Cyclic Oxidation Resistance of In718 Superalloy Treated by Laser Peening柏玉川1,花银群2,RONG Zhen2,YE Yunxia1,XUE Qing1,LIU Haixia2,CHEN Ruifang11. School of Mechanical Engineering, Jiangsu University2... by laser peening(LP). Specimens were treated by LP from one to three times, respectively. The cyclic oxidation tests at 900 ℃ for periods up to 2 h were conducted. Changes of the top surface morphology......
Trans. Nonferrous Met. Soc. China 22(2012) 228-240 Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles CHEN An-na1, CAO Fa-he1, LIU Wen-juan1, ZHENG Li-yun1... (FFT), fast wavelet transform (FWT), shot noise theory and stochastic theory. Cumulative probability curves of event frequency fn indicate that the corrosion events in the dry cycles are greater than......
Trans. Nonferrous Met. Soc. China 24(2014) 3051-3059 Vacuum assisted high-pressure die casting of AZ91D magnesium alloy at different slow shot speeds Qing-liang WANG1,2, Shou-mei XIONG1,2 1. School... 2013; accepted 27 January 2014 Abstract: The effects of vacuum assistance on the microstructure and mechanical properties of high-pressure die cast AZ91D alloy at different slow shot speeds were......
Surface modification of titanium using steel slag ball and shot blasting treatment for biomedical implant applicationsBudi Arifvianto,Suyitno,Muslim MahardikaCenter for Innovation of Medical...="ChDivSummary">Surface modification is often performed using grit or shot blasting treatment for improving the performances of biomedical implants.The effects of blasting treatments using steel slag balls......
Controlling of stress and distortion in thin copper plate by welding with trailing peeningLIU Xuesong,WANG Ping,ZHOU Guangtao,and FANG Hongyuan State Key Laboratory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin 150001,China摘 要:Welding with trail peening(WTP) is applied in T1 thin copper plate to reduce the residual......
; (2) 式中:mL为均匀质量损失量,g/mm2；mLR为均匀质量损失率,g/(mm2·h)；Δm为质量损失,g；S为浸泡在腐蚀液中的样品面积,mm2；t为浸泡时间,h. 图1 激光喷丸设备照片和激光喷丸路径 Fig. 1 Laser shot peening equipment photo(a) and laser shot peening path (b) 2 结果与分析 2.1 XRD物相分析 图2所示为激光喷丸前后试样表面X射线衍射图谱.由图2(a)可见,激光喷丸处理后没有新相的产生,处理前后物相均有α-Cu和κ-(Al-Fe-Ni)两相组成.通过对比图2(b)中激光喷丸前后衍射峰的分布可以发现,处理后Bragg衍射峰变宽.通常认为,Bragg衍射峰宽化是由于晶粒......
